Question

I add 3.20 moles of Cu to an excess of AgNO3. How many miles of silver are formed?

Answer 1

3.2 moles

Step-by-step explanation:

The equation for the reaction between copper and sliver nitrate is given by;

Cu + AgNO₃ → Ag + CuNO₃

• This is a single replacement reaction in which copper which is more reactive than silver displaces silver from its salt.

We are given;

• Moles of copper, Cu as 3.2 moles

We are required to calculate the moles of silver metal formed.

We need to first determine the mole ratio of Cu to Ag

• From the equation 1 mole reacts to form 1 mole of silver metal
• Therefore, mole ratio of Cu to Ag is 1 : 1
• Thus, moles of Cu = Moles of Ag

Hence,

The number of moles of Ag formed is 3.2 moles